Specially designed for the avid outdoor enthusiast, this advanced technology Pro Trek watch from Casio features a built-in digital compass and tracks temperature, atmospheric conditions, altitude, the tide and the moon. And it's powered by natural and artificial light, so you never need to worry about replacing batteries. Brand: Casio Dial Color: Gray Strap: Black rubber Clasp: Buckle Movement: Quartz Water Resistance: 655' Case Width: 56.3mm Case Thickness: 15mm Bracelet Dimensions: 9 long, 21.84mm wide Model No.: PRW2500-1 Special Features: Stopwatch, alarm, solar technology, digital compass, altimeter, barometer, multi-band 6 atomic timekeeping Jewelry photos are enlarged to show detail.